<template>
  <div class="header">
    <van-icon name="arrow-left"
              class="icon" 
              @click="toBack"/>
    <div>{{ title }}</div>
    <div class="edit" v-if="edit" @click="handleEdit">
      {{ store.state.edit?'编辑':'完成' }}
    </div>
  </div>
</template>

<script setup>
import { Toast } from "vant"
import { toRefs } from 'vue'
import { useRouter } from "vue-router"
import { useStore } from "vuex"
const store=useStore()
const router=useRouter()
const props = defineProps({
  title:String,
  edit:Boolean
})
const toBack=()=>{
  router.back()
}
const { title } = toRefs(props)
const handleEdit=()=>{
  if(store.state.cartList.length){
    store.commit('edit')
    store.commit('ChengeDelete')
  }else{
    Toast.fail('请添加商品到购物车')
  }
}
</script>
<style lang="less" scoped>
.header {
  background-color: #fff;
  height: 40px;
  font-size: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid #d7d7d7;
  .edit {
    font-size: 16px;
    position: absolute;
    right: 15px;
    font-weight: normal;
  }
  .icon {
    position: absolute;
    left: 10px;
  }
}
</style>